Combined with previous learning, a summary of the overall blockchain development and process is made. Blockchain is divided into public chain, private chain and alliance chain. Among them, Bitcoin and Ethereum are typical public chain representatives, HyperLedger Fabric is the representative of the alliance chain. Starting from the public chain, the blockchain is based on the principle of distributed network and everyone in the network is equal, hoping to achieve an equal value transfer process and a decentralized process, that is, transactions between people (companies and companies) are not subject to Third-party constraints, such as the current digital wallets commonly used include Alipay, WeChat, bank cards, etc., but no matter what type they are, they will be restricted by third-party platforms, which may be companies, agents, or banking regulators. When you carry out Large transfers will have an obvious feeling of capital restrictions, such as restrictions on a single transaction. Therefore, all your assets cannot be freely controlled by yourself. The blockchain wants to be decentralized, remove the supervision of third-party agencies, and enable itself to control its own funds at any time. This is the case with Bitcoin as a representative. Everyone has their own public key and private key, and the private key can only be kept by themselves. When making a transaction, only import your own private key into the wallet to transfer successfully. The private key can prove that the wallet funds are yours, and the public key is visible to all users in the Bitcoin block network. It is used to confirm the sender when transferring money The account identity of the user is himself. However, Bitcoin did not achieve its original intention to achieve decentralization. At the beginning, many people traded Bitcoin as a digital currency, just for value-added, etc., and did not connect with actual projects, so major transactions were introduced. So, Huobi, OKEX, etc. trade Bitcoin, why should they introduce exchanges instead of direct transactions? Because there is a lack of trust in a network of equal value transfer, when the sender transfers coins to the receiver, the receiver can run away with the coins, so trust cannot be built. At this time, the exchange was introduced, and everyone generally trusted the exchange, thus returning to the essence. The exchange is a third-party regulatory agency, so Bitcoin has not achieved its decentralization. Bitcoin wants to be decentralized. Only when everyone recognizes the value of Bitcoin and all items can be paid directly with Bitcoin, then decentralization can be achieved, but the result is that it has not yet reached a global consensus. There can only be a consensus within a certain range. It can be considered that within a certain small circle, the Bitcoin network has achieved decentralization. Starting from the original intention of Bitcoin, value transfer cannot be completely decentralized, why? lack of trust. So it is actually reasonable to have a third-party regulator. Like banks, banks protect our assets. Maybe we can’t freely dispose of our assets at any time, but third-party regulators are beneficial to most groups that are easy to be deceived. First, if a large amount of funds is transferred at one time , in the blockchain network, it is gone, but the bank protects personal funds to a certain extent, making the loss of funds Gold as little as possible. Second, if the blockchain assets are transferred, they may not be protected by law. The law has not been clear in this area, so there may be no way to recover them, but if the amount of the bank card is cheated, there will be legal protection. Therefore, to a certain extent, the introduction of third-party supervision is reasonable.
As an alliance chain, Fabric mainly serves the company group, so network access requires permission, and it is not a network that everyone can participate in. Moreover, Fabric is multi-centralized. In the Fabric consortium chain that Apeng knows, many new methods in Bitcoin technology have been improved, mainly in terms of technology, but it does not mean that the public chain and consortium chain are in a competitive relationship. With its own unique role, it can coexist, and we also expect the blockchain to provide us with convenience in the future.